js呼叫百度地圖介面繪製任意多邊形並獲取每個點的經緯度等
阿新 • • 發佈：2018-11-13
來自：https://blog.csdn.net/u013239236/article/details/52213977 侵刪
<!DOCTYPE html> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta name="viewport" content="initial-scale=1.0, user-scalable=no" /> <style type="text/css"> body, html{width: 100%;height: 100%;margin:0;font-family:"微軟雅黑";} #allmap {width: 100%; height:500px; overflow: hidden;} #result {width:100%;font-size:12px;} dl,dt,dd,ul,li{ margin:0; padding:0; list-style:none; } p{font-size:12px;} dt{ font-size:14px; font-family:"微軟雅黑"; font-weight:bold; border-bottom:1px dotted #000; padding:5px 0 5px 5px; margin:5px 0; } dd{ padding:5px 0 0 5px; } li{ line-height:28px; } </style> <script type="text/javascript" src="http://api.map.baidu.com/api?v=2.0&ak=5E5EE28a7615536d1ffe2ce2a3667859"></script> <!--載入滑鼠繪製工具--> <script type="text/javascript" src="http://api.map.baidu.com/library/DrawingManager/1.4/src/DrawingManager_min.js"></script> <link rel="stylesheet" href="http://api.map.baidu.com/library/DrawingManager/1.4/src/DrawingManager_min.css" /> <!--載入檢索資訊視窗--> <script type="text/javascript" src="http://api.map.baidu.com/library/SearchInfoWindow/1.4/src/SearchInfoWindow_min.js"></script> <link rel="stylesheet" href="http://api.map.baidu.com/library/SearchInfoWindow/1.4/src/SearchInfoWindow_min.css" /> <title>百度地圖API功能演示</title> </head> <body> <div id="allmap" style="overflow:hidden;zoom:1;position:relative;"> <div id="map" style="height:100%;-webkit-transition: all 0.5s ease-in-out;transition: all 0.5s ease-in-out;"> </div> </div> <div id="result"> <input type="button" value="獲取繪製的覆蓋物個數" onclick="alert(overlays.length)"/> <input type="button" value="清除所有覆蓋物" onclick="clearAll()"/> <input type="button" value="獲取多邊形的頂點" onclick="getPoint()"/><br/> <input type="button" value="開啟線、面編輯功能" onclick="Editing('enable')"/> <input type="button" value="關閉線、面編輯功能" onclick="Editing('disable')"/> <input type="button" value="顯示原有多邊形" onclick="showPolygon(this)" /><br/> <input type="button" value="畫多邊形" onclick="draw(BMAP_DRAWING_POLYGON)" /> <input type="button" value="畫矩形" onclick="draw(BMAP_DRAWING_RECTANGLE)" /> <input type="button" value="畫線" onclick="draw(BMAP_DRAWING_POLYLINE)" /> <!-- <input type="button" value="畫點" onclick="draw(BMAP_DRAWING_MARKER)" />--> <span>右鍵獲取任意點的經緯度</span> </div> <div id="resultShape"></div> <div id="shape">座標為</div> <script type="text/javascript"> function $(id){ return document.getElementById(id); } // 百度地圖API功能 var map = new BMap.Map('map'); var poi = new BMap.Point(113.948913,22.530844); map.centerAndZoom(poi, 16); map.enableScrollWheelZoom(); var overlays = []; var overlaycomplete = function(e){ overlays.push(e.overlay); }; var styleOptions = { strokeColor:"red", //邊線顏色。 fillColor:"red", //填充顏色。當引數為空時，圓形將沒有填充效果。 strokeWeight: 3, //邊線的寬度，以畫素為單位。 strokeOpacity: 0.8, //邊線透明度，取值範圍0 - 1。 fillOpacity: 0.6, //填充的透明度，取值範圍0 - 1。 strokeStyle: 'solid' //邊線的樣式，solid或dashed。 } //例項化滑鼠繪製工具 var drawingManager = new BMapLib.DrawingManager(map, { isOpen: false, //是否開啟繪製模式 //enableDrawingTool: true, //是否顯示工具欄 drawingToolOptions: { anchor: BMAP_ANCHOR_TOP_RIGHT, //位置 offset: new BMap.Size(5, 5), //偏離值 }, circleOptions: styleOptions, //圓的樣式 polylineOptions: styleOptions, //線的樣式 polygonOptions: styleOptions, //多邊形的樣式 rectangleOptions: styleOptions //矩形的樣式 }); //新增滑鼠繪製工具監聽事件，用於獲取繪製結果 drawingManager.addEventListener('overlaycomplete', overlaycomplete); map.addEventListener("rightclick",function(e){ if(confirm(e.point.lng + "," + e.point.lat)){ $("shape").innerHTML=$("shape").innerHTML+" <br/>("+e.point.lng+","+e.point.lat+")"; } }); function draw(type){ drawingManager.open(); drawingManager.setDrawingMode(type); } function clearAll() { for(var i = 0; i < overlays.length; i++){ map.removeOverlay(overlays[i]); } overlays.length = 0 } function getPoint(){ $("resultShape").innerHTML=''; for(var i = 0; i < overlays.length; i++){ var overlay=overlays[i].getPath(); $("resultShape").innerHTML=$("resultShape").innerHTML+overlay.length+'邊形:<br/>'; for(var j = 0; j < overlay.length; j++){ var grid =overlay[j]; $("resultShape").innerHTML=$("resultShape").innerHTML+(j+1)+"個點:("+grid.lng+","+grid.lat+");<br/>"; } } } function Editing(state){ for(var i = 0; i < overlays.length; i++){ state=='enable'?overlays[i].enableEditing():overlays[i].disableEditing(); } } function showPolygon(btn){ var polygon = new BMap.Polygon([ new BMap.Point(113.941853,22.530777), new BMap.Point(113.940487,22.527789), new BMap.Point(113.94788,22.527597), new BMap.Point(113.947925,22.530618) ], styleOptions); //建立多邊形 map.addOverlay(polygon); //增加多邊形 // overlays.push(polygon); //是否把該影象加入到編輯和刪除行列 btn.setAttribute('disabled','false'); showText(); } function showText(){ var opts = { position : new BMap.Point(113.941853,22.530777), // 指定文字標註所在的地理位置 offset : new BMap.Size(30, 30) //設定文字偏移量 } var label = new BMap.Label("不可編輯", opts); // 建立文字標註物件 label.setStyle({ color : "black", fontSize : "16px", fillColor:"red", //填充顏色。當引數為空時，圓形將沒有填充效果。 }); map.addOverlay(label); } </script> </body> </html>